The High Pressure High Temperature (HPHT) process is one of the primary methods used to create real lab-grown diamonds. By replicating the extreme heat and pressure found deep within the Earth's mantle, HPHT technology produces diamonds that are chemically, physically, and optically identical to natural diamonds. These diamonds offer the same brilliance, hardness, and durability, maki... https://lepdodiamonds.com/hpht-diamond-process-guide/